Update setup.py

Author: jackton1

setup.py

@@ -6,7 +6,7 @@
 LONG_DESCRIPTION_TYPE = "text/markdown"
 
 if os.path.isfile(README_PATH):
-    with io.open(README_PATH, encoding="utf-8") as f:
+    with open(README_PATH, encoding="utf-8") as f:
         LONG_DESCRIPTION = f.read()
 else:
     LONG_DESCRIPTION = ""